Means for suspending air-pumps



No. 607,2l7. Patented July l2, I898. N. A. CHRISTENSEN.

MEANS FOR SUSPENDING AIR PUMPS.

(Application filed Nov. 7, 1895.) (No Model.)

UNTTEE STATES PATENT OEErcE,

NIELS ANTON CHRISTENSEN, OF MlLl/VAUKEE, VISCONSIN.

MEANS FOR SUSPENDING AIR-PUMPS.

SPECIFICATION forming part of Letters Patent No. 607,217, dated July 12, 1898.

Application filed November 7, 1895. Serial No.- 568,183. (No model.)

To all whom it may concern:

Be it known that I, NIELs ANTON CHRIS- TENSEN, a subject of the King of Denmark, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Means for Suspending Air-Pumps, which are' fully set forth in the following specification, reference being had to the accompanying drawings, in which- Figure 1 represents a plan View embodying my invention; Fig. 2, a side elevation also embodying my invention, and Fig. 3 a crosssection on the line 3 3 of Fig. 2.

My invention relates to means for suspend ing an air-pump from the framework of a cartruck or car-body in such a manner as to form a yielding or flexible connection between the said pump and the truck or car-body.

My invention relating to the inclosed selfcontaiued pump has already been fully described in Letters Patent No. 534,813, issued to me February 26, 1895, for air-brake pump apparatus, and my present invention may be considered an improvement upon the construction shown and described in said-Letters Patent. The said Letters Patent show a stiff link for suspending the air-pump, and in general the results obtained were satisfactory. The present construction, however, is more desirable for general use; and my invention consists in the combination and arrangement of the hereinafter-described devices for the purpose of producing'such a yielding or flexible connection as is claimed in this application.

Referring to the drawings illustrating my invention, a is the wheel of a car-truck; b is the axle, and ois the pump mounted upon said axle. The pump and method of mounting said pump upon said axle is fully described in the said Letters Patent above referred to and need not be further described here.

(1 is the part of the framework of the tr uckaxle to which a forging c is securely fastened at one end, as shown in Fig. 2. The other end of said forging has a large hole 6 through it. I have shown this end to be bent in such a manner as to run parallel with the center line of the pump; but such construction may "through it.

not be followed in every instance; Thepump o is provided with lugs g, between which is fitted an eyebolt 77, held in place by a pin 2'.

j is a metal casting, preferably of iron,circular in form and resting directly on said lugs g, its lower part being formed. to fit said lugs and having a hole for the eyebolt h to pass On the upper side of the ring j is a recess formed for receix ing a rubber disk or spring 7a, the said disk fitting into another recess in an iron casting or ring Z, which lies against the forging The eyebolt h passes through a hole also in this ring Z. On the otherside of the forging e is another metal ring or casting m, circular in form and through a hole in which the eyebolt also passes.

n is a spiral spring mounted on the eyebolt h and held between the ring or casting m and another ring or casting 0 on the top of said spring, as shown inFig. 2, the said rings or castings m and 0 having recesses within them for holding said spring in place. As before stated, the casting 0 is placed over the top of the spring at and is held in place by a nut 19 and split pin on the eyebolt h. The eyebolt also passes through a hole in the ring 0. These four castings,with the disk 7c, form washers on the eyebolt h for holding the forging e in such a manner as to make a yielding or flexible connection between the air-pump and car truck or body, as before stated. The hole 6 in the end ofthe forging e is made large to allow of play to compensate for the lateral movement of the axle in relation to the truck. The interposition of the spring and the eyebolt and the rubber disk or springk all tend, as before stated, to make such connection yielding and flexible to compensate for the difference in movements of the car-body to which the forging is attached at the upper end and the pump, which is mounted directly or indirectly upon the axle and partakes of the motions of the axle.

Having thus described my invention, what I claim to be new, and desire to secure by Letters Patent, is- 1. In combination with the truck frame 01' body, and its axis; an airpump mounted upon said axle; a rigid hanger depending from the body or truck and provided with an enlarged opening; a bolt or rod connected to the air-pump and passing through the opento said forging and having mounted on said forging the spring 11 and the disk or spring 76, with suitable Washers for holding said forging in position on said eyebolt substantially as shown and described.

In an air-brake pump operated by a caraxle, the forging e, in combination with the eyebolt h, pin 2', rings j, l, 'm, 0, the disk 7;, and spring n, substantially as shown and described.

NIELS ANTON CHRISTENSEN.

Witnesses:

JOHN R. COTTON, EDW. E. FITZGERALD. 

